Physics of Particles and Nuclei Letters最新文献_第8页

Exploring the Giant Monopole Resonance in Superheavy Nuclei: A Theoretical Perspective 超重核巨单极子共振的理论探讨

IF 0.4

Physics of Particles and Nuclei Letters Pub Date : 2026-06-08 DOI: 10.1134/S1547477126700044

S. Kumar, Jeet Amrit Pattnaik, S. K. Singh, R. N. Panda, M. Bhuyan, S. K. Patra

{"title":"Exploring the Giant Monopole Resonance in Superheavy Nuclei: A Theoretical Perspective","authors":"S. Kumar, Jeet Amrit Pattnaik, S. K. Singh, R. N. Panda, M. Bhuyan, S. K. Patra","doi":"10.1134/S1547477126700044","DOIUrl":"10.1134/S1547477126700044","url":null,"abstract":"Within the relativistic mean-field (RMF) framework and employing the extended Thomas–Fermi approximation, we calculate the binding energies and charge radii of the recently synthesized superheavy nuclei with atomic nos. Z = 110–118. The calculated values are compared with results from relativistic Hartree calculations as well as with available experimental data to assess the reliability and predictive power of the employed methods. The study is further extended to investigate the collective vibrational properties of these superheavy nuclei by estimating the energies of their giant monopole resonances (GMR), commonly referred to as the “breathing mode.” These GMR energies are computed using both scaling and constraint approaches, and the results are benchmarked against those obtained from other theoretical models, such as the relativistic random phase approximation (RPA) and time-dependent mean-field calculations. To ensure a comprehensive analysis, comparisons are also made with known results for lighter nuclei, specifically zirconium (Zr) isotopes in the neutron number range N = 42–86 and oxygen (O) isotopes with N = 10–36. Finally, the nuclear incompressibility of the superheavy elements is estimated from the extracted GMR energies, providing insight into the equation of state and stiffness of nuclear matter in this extreme mass region.","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"23 3","pages":"287 - 302"},"PeriodicalIF":0.4,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148196313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluating the Dosimetric and Sensitivity Mapping Performance of CVD Diamond Radiation Detector with X-Ray Tube and Dual Synchrotron Micro-Beams x射线管双同步加速器微光束CVD金刚石辐射探测器的剂量学和灵敏度成像性能评价

IF 0.4

Physics of Particles and Nuclei Letters Pub Date : 2026-06-08 DOI: 10.1134/S1547477126700056

M. A. E. Abdel-Rahman, W. R. Alharbi, A. Abdelghafar Galahom, A. El-Taher, N. Tartoni, A. Lohstroh

{"title":"Evaluating the Dosimetric and Sensitivity Mapping Performance of CVD Diamond Radiation Detector with X-Ray Tube and Dual Synchrotron Micro-Beams","authors":"M. A. E. Abdel-Rahman, W. R. Alharbi, A. Abdelghafar Galahom, A. El-Taher, N. Tartoni, A. Lohstroh","doi":"10.1134/S1547477126700056","DOIUrl":"10.1134/S1547477126700056","url":null,"abstract":"This study presents a comprehensive investigation of the dosimetric characteristics and sensitivity mapping of a CVD diamond radiation detector (VS-Pt) fabricated with platinum metal contacts. The detector’s performance was evaluated through a series of measurements, including I–V characteristics, signal-to-noise ratio, dose rate dependence, linearity, photoconductive gain, sensitivity, rise time, and reproducibility, using an X-ray tube source. The device underwent annealing, which led to improvements in sensitivity, with a linear response and increased photoconductive gain. The reproducibility of the device was found to be slightly higher than the IAEA’s recommended limit. Following this, a comparative sensitivity mapping study was performed using two synchrotron micro-beam facilities—NSLS and DLS—employing different micro-beam sizes. The investigation explored the effects of beam size, bias polarity, and step displacement on the spatial resolution and sensitivity of the device. Results showed that sensitivity was influenced by beam size, with smaller beam and step sizes yielding higher sensitivity, likely due to the priming effect. Bias polarity also played a significant role, with negative bias producing higher photocurrents, particularly near nitrogen lines in the diamond. Additionally, the annealed sample exhibited better homogeneity and faster rise times compared to the un-annealed version. The findings highlight the optimal conditions for synchrotron-based dosimetric measurements, providing valuable insights for improving detector performance in applications such as radiotherapy dosimetry, radiobiology, and beam monitoring at synchrotron facilities.","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"23 3","pages":"303 - 326"},"PeriodicalIF":0.4,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148196280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Erratum to: Development of a Beam Diagnostics Method Based on Pick-Up Electrode Signal Analysis: Bench Test Results 基于拾取电极信号分析的波束诊断法的发展：台架测试结果

IF 0.4

Physics of Particles and Nuclei Letters Pub Date : 2026-06-08 DOI: 10.1134/S1547477126030015

L. A. Pavlov, I. V. Kalagin, S. V. Mitrofanov, V. A. Semin, V. I. Lisov

引用次数: 0

Investigation of Neutron Intensity Variations in Different Energy Ranges for Diagnosing Hazardous Geodynamic Events 不同能量范围中子强度变化诊断危险地球动力学事件的研究

IF 0.4

Physics of Particles and Nuclei Letters Pub Date : 2026-06-08 DOI: 10.1134/S1547477126700159

A. M. Malimbayev, V. P. Antonova, V. Yu. Lutsenko, V. I. Kapytin

{"title":"Investigation of Neutron Intensity Variations in Different Energy Ranges for Diagnosing Hazardous Geodynamic Events","authors":"A. M. Malimbayev, V. P. Antonova, V. Yu. Lutsenko, V. I. Kapytin","doi":"10.1134/S1547477126700159","DOIUrl":"10.1134/S1547477126700159","url":null,"abstract":"Results of studies on variations in neutron intensity in different energy ranges (slow and high-energy ≥100 MeV) obtained at the high-mountain Tien Shan cosmic ray station near the Zailiysky fault are presented. The analysis of atmospheric pressure influence on neutron intensities reveals a common origin between slow and high-energy components. A significant contribution of the lithosphere to the flux of slow neutrons during seismic activity has been established, reaching up to 10–12% above the background level, relative to the long-term background level, defined as the mean value over analogous periods without geophysical disturbances. Observed variations in slow neutron intensity provide additional signals that may serve as potential earthquake precursors. The spectral analysis of low-frequency variations (2006–2024) reveals a 29.5-day periodicity linked to lunar gravitational effects, suggesting a triggering role in geodynamic processes, identified via spectral analysis and complex demodulation methods. However, further research is required to distinguish between correlation and causation in the observed relationships.","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"23 3","pages":"400 - 409"},"PeriodicalIF":0.4,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148196362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Iron Ore Separator Based on the Tagged Neutron Method 基于标记中子法的铁矿分选机

IF 0.4

Physics of Particles and Nuclei Letters Pub Date : 2026-06-08 DOI: 10.1134/S1547477126700123

V. Yu. Alexakhin, E. I. Andreev, I. K. Komarov, E. A. Razinkov, Yu. N. Rogov, M. G. Sapozhnikov

引用次数: 0

Features of the Magneto-Optical Structure of a Multifunctional Figure-8 Ring 多功能8字环的磁光结构特征

IF 0.4

Physics of Particles and Nuclei Letters Pub Date : 2026-06-08 DOI: 10.1134/S1547477126700081

S. D. Kolokolchikov, A. E. Aksentyev, A. A. Melnikov, Yu. V. Senichev

引用次数: 0

First Look into the Potential of the Proton Spin in a Quasi-Frozen Spin Lattice as an Axion Detector 首先探讨在准冷冻自旋晶格中作为轴子探测器的质子自旋的势

IF 0.4

Physics of Particles and Nuclei Letters Pub Date : 2026-06-08 DOI: 10.1134/S1547477126700093

A. Aksentev, A. Melnikov, Yu. Senichev, S. Kolokolchikov, N. Nikolaev, P. Palamarchuka

引用次数: 0

The Casimir Eigenvalues on (a{{d}^{{ otimes k}}}) of su(N) are Linear on N su(N)在(a{{d}^{{ otimes k}}})上的卡西米尔特征值在N上是线性的

IF 0.4

Physics of Particles and Nuclei Letters Pub Date : 2026-04-14 DOI: 10.1134/S1547477125702012

R. L. Mkrtchyan

引用次数: 0

Charged Scalar Bosons under Rotation and Acceleration 旋转和加速下的带电标量玻色子

IF 0.4

Physics of Particles and Nuclei Letters Pub Date : 2026-04-14 DOI: 10.1134/S1547477125702036

M. Bordag, D. N. Voskresensky

{"title":"Charged Scalar Bosons under Rotation and Acceleration","authors":"M. Bordag, D. N. Voskresensky","doi":"10.1134/S1547477125702036","DOIUrl":"10.1134/S1547477125702036","url":null,"abstract":"Creation of charged spinless bosons from vacuum in the rigidly rotating frame is studied in presence of the external static electromagnetic fields, being formed either in the resting, or in the general rotating or in the local-flat frames. It is shown that the description remains the same in the resting and the local-flat frames. More specifically, the case of a solenoid (magnetic flux tube) embedded into the rotating empty cylinder (rotation frame) is studied in presence or absence of a static square electric potential well (e{{A}_{0}}). A supervortex of a spinless-boson field can be created from vacuum when the rotation frequency exceeds a critical value ({{Omega }_{{text{c}}}}). It is shown that ({{Omega }_{{text{c}}}}) is smaller provided the solenoid rests in the resting frame. Then the case is considered when the rotating frame additionally moves with acceleration (vec {w}({kern 1pt} vec {r}{kern 1pt} ') ne 0). A specific case (w(r) = {G mathord{left/ {vphantom {G r}} right. kern-0em} r}) for (G = {text{const}}) is treated explicitly. It is shown that for (G < 0) the charged spinless-boson vortex can be created in rapidly rotating system even in the limit when the magnetic and electric fields tend to zero.","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"23 2","pages":"139 - 146"},"PeriodicalIF":0.4,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147667767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of a Shaper of Short Bipolar Pulses 短双极脉冲成形器的研制

IF 0.4

Physics of Particles and Nuclei Letters Pub Date : 2026-04-14 DOI: 10.1134/S1547477125702073

O. L. Seroshtanov, V. V. Kobets, A. A. Ulankin

引用次数: 0